Chain-link construction



F. R. HARRISON CHAIN LINK CONSTRUCTION Au 7, m3, 1,464,267

Filed May 15, 1922 2 sheets-sheet 1 Aug. 7, 1923.

F. R. HARRISON CHAIN LINK CONSTRUCTION- Filed May 15 1922 2 Sheets-Sheet 2 Cit FREDERICK B. HARRISON, OF TiIINNEAPQLIS, MIINNESOTA.

CHAIN-LINK CONSTRUCTION.

Application filed may 15,

To oZZwhom it/nay concern:

Be it known that I, Fnnnnnion R. Hannison, a citizen of the United States, residing at liiiinncapolis, in the county of Hennepin and State of lilinnesota, have invented cei-- tain new and useful improvements in Chain- Link Constructions, of which the following is a specification.

This invention relates to chain link canstructions, and the main object is to provide an improved, practical and el'licient type of chain link which is particularly adaptable for use in connection with large and heavy duty chains. Further objects will be dis closed in the course of the following specification, particularly pointed in the claims appended hereto, and clearly i trated in the accompanying drawings wl in: I

Fig. 1 is an elevation of a chain link embodying a preferred form of the invention; fractional, portions being broken away for illustration purposes.

Fig. 2 is a sectional detail view of one side of a link the same illustrating a slight modification of the construction shown in F ig. 1.

Fig. 3 shows a further modification of the link construction.

Fig. i is a fractional detail side view of the right end portion of the link shown in Fig. 3.

5 illustrates a modification of the link construction show in Fig. 3.

Fig. 6 is sectional detail view on the line 6-6 in Fig. 5.

Fig 7 is an end View of the link shown in Fig. 5 and on the line 77 in the figure, and,

Fig. 8 illustrates a modification of side bar which may be used with the constructions shown in Figs. 3 to 7, inclusive.

Referring to the drawings, by reference characters, and particularly to Figs 1 and 2 for the moment, 9 designates the side plates of a chain link to each end of which is connected a link bar 10. One end of each of the side plates 9 is provided with an integrally formed bushing or trunnion member 11, and the opposite ends of the plates 9 are provided with recesses adapted to seat the end of the adjacent bushing member 11, as at 12. The ends of the bushings 11 may be straight, as in Fig. 2, or they may be reduced in size, as shown in Fig. l. The link bars are rotatably carried on the members 11, and, when thus assembled, all the parts are secured together by pins (rivets or bolts) 1922. Serial No. 561,202. v

13, which extend through the men'ibers l1 and the side plates 9. in t is construct:

' l e ohvioi. that the main ii very rigid and strong, while the link being carried on the lJt. 'l wear direc the pin, lig the main ln chain.

in Figs. 3 and a", the 1 instead of being see side platcs'S are pro" end portions l t, liauiin in slots 16, tne link sections can be hoonod and .erlocked to gether. Cotter pins 13", or the like, are serted in ears 18 on the outer sides of side plates, so that the members it cannot disengage from the slots 16. it is necessary, in his type of link, to provide the link bar end apertures with channels 19 so that the lugs 15 an be passed through said open tur'es together with the trunnion members 11 in the linkv construction illustratei in 1* 5, and 8, the side plates 9" are each proy Lied with two end slots 16 and the trunnions memljlers 11 which are (le -techable from the side plates. are flattened and provided at both ends with lugs In Fig. 8 a further modification in the member ll is shown in that the flattened end portions let rest between the ears 18, and the cotter pin 17 engage in apertures in both the ears and the saidend portions.

It is understood that further modifications may be made in the general design and structural details of this invention, proyided, however, that such modifications come with-in the spirit and scope of the ap pended claims. Having now therefore fully shown and described my invention, what l claim is:

1. A chain link comprising a pair of side plates, trunnion members connecting said plates at the ends of the link, each of said members being rigidly formed at one end with one of the side plates and having its other end flattened and provided with a lug arranged longitudinally with respect to and for engagement with the opposite plate, and means for removably securing said flattened trunnion ends in said opposite side plates consisting of pins arranged on the side of the plate for engagement against said trunnion ends.

2. A chain link comprising a pair of side plates, trunnion ineniiberi; colniecting said 6 locking the same with the adjacent side plate, and detachable means consisting of removable pins on the plates for detaohably retaining said lugs in interlocking positions.

3. A chain link comprising a pair of side plates, trunnion members connecting said side plates at the ends of the link, each of said trunnion members being rigidly secured atone end to one plate and extending through an aperture in the other plate with its other end, so as to interlock therewith, a pair of ears on the outer side of each plate, and a removable pin in each pair of said ears, said pins being adapted 'to detachably secure said trunnion members in said interlocking positions. 7

4. A chain link comprising side plates and trunnion members connectingthe ends thereof, said side plates eachhaving a'slot adapted to be engaged by one end of a trunnion member, which extends therethrough, and which is provided With a lug adapted to engage against said side plate, ears formed on the side plates adjacent said slots, and

pins detachably secured in said ears, said pins-being adapted to engage the portions of the trunnion members extending through the slots.

5. In a chain link having side plates and trunnion members connecting the end there of, means for connectingone end of trun nion member to one end ot a side plate consisting of providing the latter with a longitudinal slot and integral ears at each side thereof, said trunnion end being flattened for engagement with the slot and having 2 lug at one side for interlocking engagement with the adjacent plate portion, and a pin extending through said ears for retaining said interlocking engagement of the lug with the side plate.

In testimony whereof I afiix my signature.

FREDERICK R. HARRISON. 

